Trolley-wheel.



A. M. LEVERING-l TROLLEY WHEEL. APPLIUATION FILED 00T.1, 190s.

Patented 00%. 5, 1909.

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M. LlilVIltIlbTGr, 0F PHILADELPHIA, PENNSYLVANIA.

TROLLEY-WHEEL.

Specification of Letters Patent Patented Oct. 5, 1909.

Application filed October 1, 1908. l Serial No."455,676. V

To all whom it muy concern:

lie it known that I, ALBERT M. LEVERING,

a citizen of the United States, residing at inexpensive parts, which can be easily and cheaply assembled, and. be substantial vand durable in use.

-lFVith these and otherobjects in view, the

invention consists in cert-ain novel features of construct-ion, combinations and arrangements of parts as will be morefully hereinafter described and pointed out in the claims. -In the accompanying dra'WingsFigure l, is a view in vertical longitudinal section illustrating my improvementswith the several parts in position for assembling. Fig.

2, is a similar view showing the parts assembled and 1n operatlve position. Flg. 3, 1s a vleW 1n cross section on line :v -w of Fig. 2, and Fig. 4, is a view in longitudinal sectionI of the central disk or body portion of the Wheel. l represents an ordinary trolley pole lhaving the usual forked end 2 carrying the our- Anal 3 upon which my improved trolley wheel4 is mounted. The Wheel comprisesa central. disk 4 having a transverse central bore 1n which the bearing sleeve or bushing 5 is mounted to turn upon the journal-3, this -central disk 4 and lts bushing 5 are made with longitudinal alined openings 9 to re-v ceive .p1ns,6. The pins 6 are of slightly greater, length than the length of the openings in`the disk and sleeve or bushing and are preferablyconcaved attheir inner ends for a purpose which will more fully hereinafter appear. A rim 7 is'provided around the disk ALand loosely tits the same, and is made -with opposite internal recesses or sockets 8, to receive the outer ends of pins 6, when =the latterare moved outward, in assembling the wheel, as Will now be described.

`spirit and scope of m The disk e with the pins (i are forced inward so as not to project beyond the periphery of the .disk is inserted within the rim 7, and a suitable instrument ispassed into the bearing sleeve 5 vand forces the pins G outward, into the recesses 8 in the rim, and While in, this position the journal 3 is in-r serted, and will, during the operation of the wheel, hold the pins in their projected positions Without-additional means. The inner ends of the pins, as above stated, are concaved or rounded not only for the' purpose of providing a smooth bearing against the journal 3, but also tov rovide an opening bet-Ween the pins when .t ey are forced inward to their innermost positions, and enabling the entrance of a tool between them to `force them outward-and receive the journal.

- This construction of wheel enables the rim to have a certain pivotal movement with vrelation to the central disk or body portion, and is in effect a gimbal joint. For instance when the pins 6 lare in a substantial vert-ical lposition the wheel rim can rock inl a horizontal plane and when the pins are horizontal, or substantially so the wheel will rock 'in a vertical'plane, thus allowing the wheel to track along the wire and 'follow the bends and curves without danger of jumping oif.

The parts of the wheel are inexpensively made, readily. assembled, are not liable to become damaged in use and will prevent a great deal of damage and annoyance caused bythe wheels leaving the wire as is common in every-day operation of the like.

trolley cars and While I have shown and described a form of In invention `which I believe to be the best orm, I would have it understood that I do not restrict myself to the particular structure shown and described, but consider myself at liberty to make such slight changes and illustrations as fairly fall within the A invention. Havingtlius descri ed my invention what I claim as new and desire to secure by Letters Patent is:

1. A trolley wheel comprising a central disk a rim thereon, and means pivotally connecting-the disk and rim.

2. A trolley wheel comprising a disk, a rim thereon, and alined pivot pins projecting intothe disk and rim and pivotally connecting the rim with the disk.

central 3. A trolley Wheel lcomprising a central disk, a rim thereon, and alined pins in the connecting the rim und disk.

4. A trolley Wheel comprising :i celii'ul disk having alinecl longiudiniil opmiiigs; therein, pins in said openings of gieafilor length than said. opei'sving, and a rim un axial disk having recesses to imei-vo @mi iii.

5. A. tiollg whegl coiiipiiaiiigli iiiinl disk having a iizuisveist bore, :i iii/wing sleeve therein, uid disk and, Sleeve l alinedvopeniiifjs, pins in Said openings, :1 rim on Said disk having recesses therein ii@ i'ecuivctliv pim and permit pivuiiul zum@ ineiiof the rim on tii?l diflli.

disk projecting inw the rim and pivotiilijyf "S'Q 'Holley wiieei Comprising :i wiwi ffil: inning aline@ openings therein, :i Vim fm .lid d si; having iecsses :dined iviili the openings in tlm (limi, pins in said openings iii fjle isli, filial u joui-nai Ain said disk prelieviiiig the ping ili'o the i'ecfases in the iim. 

